Clean Water Act discharge permit · NPDES MO0054755
HOPKINS WWTF, Hopkins, MO: NPDES MO0054755 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
HOPKINS WWTF, held by City of Hopkins, holds NPDES permit MO0054755, which discharges to Middle Fork One Hundred And Two River. EPA’s file records it issued May 13, 2013 and expiring March 31, 2018. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | HOPKINS WWTF |
|---|---|
| Permittee as filed | City of Hopkins |
| NPDES ID | MO0054755 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | May 13, 2013 |
| Expiration date | March 31, 2018 |
| Address | Hopkins, MO 64461 |
| Receiving water | Middle Fork One Hundred and Two River |
| Subwatershed | Middle Fork One Hundred and Two River (HUC 102400130105) |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 18Pollutants on file
- 11Under a numeric limit
- 16With a violation of any kind
- 8With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 3 | 125 | 35 | November 30, 2024 | 57% over the limit |
| Solids, total suspended | 3 | 122 | 32 | November 30, 2023 | 117% over the limit |
| Solids, suspended percent removal | 0 | 56 | 26 | December 31, 2025 | 186% over the limit |
| BOD, 5-day, percent removal | 0 | 44 | 14 | December 31, 2025 | 186% over the limit |
| Coliform, fecal general | 0 | 3 | 3 | October 31, 2012 | 249,900% over the limit |
| E. coli | 2 | 42 | 2 | May 31, 2021 | 178% over the limit |
| E. coli, colony forming units [CFU] | 0 | 2 | 2 | May 31, 2017 | 114% over the limit |
| pH | 1 | 77 | 1 | January 31, 2020 | |
| Nitrogen, ammonia total [as N] | 2 | 78 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 60 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 36 | 0 | ||
| Chlorine, total residual | 2 | 36 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 36 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 36 | 0 | ||
| Phosphorus, total [as P] | 0 | 36 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 2 | 20 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 1 | 0 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 1 | 0 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 11Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 22, 2026 | Permit Violations - Unapproved Operation | ST6 |
| June 15, 2026 | Reporting Violations - Failure to Submit DMRs | ST6 |
| December 29, 2025 | Reporting Violations - Failure to Submit DMRs | ST6 |
| September 23, 2025 | Reporting Violations - Failure to Submit DMRs | ST6 |
| June 18, 2025 | Reporting Violations - Failure to Submit DMRs | ST6 |
| December 18, 2024 | Reporting Violations - Failure to Submit DMRs | ST6 |
| August 2, 2024 | Reporting Violations - Failure to Submit DMRs | ST6 |
| September 20, 2022 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| September 29, 2020 | Effluent Violations - Numeric effluent violation | ST6 |
| January 27, 2020 | Effluent Violations - Numeric effluent violation | ST6 |
| December 27, 2019 | Effluent Violations - Numeric effluent violation | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID MO0054755 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.